只要发送装置和接收装置使用相同的值，-一个生成多项式可以是任意长，包含任何1或0的形式。几个已经展开的标准生成多项式最适合错误检测。RTU协议用多项式X*+X*+X2+1,用二进制表示就是1 1000 0000 0000 0101。这个多项式生成的CRC就是众所周知的CRC-16.

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